1.Which of the following quantities are vectors? Include all that apply.

1. distance traveled
2. displacement
3. average speed
4. average velocity
5. instantaneous velocity

2.Numerical values and directions are stated for a variety of quantities. Which of these statements represent a vector description? Include all that apply.

1. 20 meters, west
2. 9.8 m/s/s
3. 35 mi/hr, south
4. 16 years old
5. 60 minutes
6. 3.5 m/s/s, south
7. -3.5 m/s/s
8. +20 degrees

3.An airplane moves at 141 km/h toward the northeast (45 degrees). What is its component velocity in the northward direction?

a. 41 km/h

b. 100 km/h

c. 110 km/h

d. 141 km/h